Patents by Inventor Manfred Winkels

Manfred Winkels has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Diaphragm fuel pump and associated method
    Patent number: 4403925
    Abstract: A pneumatically operated diaphragm fuel pump comprising a ram actuated by a diaphragm and arranged in a drive chamber and a reversible lever subjected to the action of a tension spring for actuating suction and air-inlet valves. The lever is locked with respect to the ram for a given range of stroke of the ram and switching takes place only at the dead center positions of the diaphragm.
    Type: Grant
    Filed: August 3, 1981
    Date of Patent: September 13, 1983
    Assignee: Pierburg GmbH & Co. KG
    Inventors: Ernst Kuhlen, Manfred Winkels